MODULAR WIND TURBINE BLADE AND METHOD FOR MANUFACTURING SAME

    公开(公告)号:EP4338940A1

    公开(公告)日:2024-03-20

    申请号:EP22832235.0

    申请日:2022-08-24

    Abstract: The invention relates to the technical field of wind power generation equipment, in particular to a modular wind turbine blade and a manufacturing method thereof, comprising a blade root, an intermediate portion and a blade tip, wherein the intermediate portion comprises a plurality of modular blades, two adjacent modular blades being provided at edge thereof with a first connecting portion and a second connecting portion that cooperate with each other, and wherein the plurality of modular blades includes a trailing edge shell, a leading edge shell and a main beam, respectively, the first connecting portion at the edge of the trailing edge shell and the leading edge shell being fixedly connected to the second connecting portion at the edge of the main beam. The wind turbine blade according to the present invention adopts segmented modular structural design, which effectively reduces the mold occupancy time of the blade, shortening the production cycle and improving the molding efficiency.

    PRECURED FIBROUS ELEMENTS FOR A SPAR CAP OF A WIND TURBINE BLADE

    公开(公告)号:EP4335629A1

    公开(公告)日:2024-03-13

    申请号:EP22194631.2

    申请日:2022-09-08

    Abstract: A wind turbine blade part comprising a plurality of precured fibrous elements, wherein each of the plurality of precured fibrous elements has:
    - a width defined between a first side and an opposite second side,
    - a thickness defined between an upper surface and an opposite lower surface,
    - a length defined by a first longitudinal end and a second longitudinal end, and
    - a longitudinal direction extending between the first longitudinal end and the second longitudinal end,
    wherein each precured fibrous element comprises:
    - a plurality of unidirectional fibre bundles extending substantially in the longitudinal direction of the precured fibrous element, and
    - at least one non-woven fibre strip,

    wherein the plurality of unidirectional fibre bundles and the at least one non-woven fibre strip are embedded in a polymer matrix, and
    wherein the at least one non-woven fibre strip is arranged between a plurality of first unidirectional fibre bundles and a plurality of second unidirectional fibre bundles of the plurality of unidirectional fibre bundles.

    METHOD OF MANUFACTURING A MODULAR WIND TURBINE ROTOR BLADE

    公开(公告)号:EP4331823A1

    公开(公告)日:2024-03-06

    申请号:EP22193686.7

    申请日:2022-09-02

    Abstract: The application describes a method of manufacturing a wind turbine rotor blade (1) comprising two or more rotor blade segments (11, 12), which method comprises the steps of providing a mould (3, 30S, 30P) for the entire rotor blade (1), the mould comprising a lower shell (30S) and an upper shell (30P); forming a lower layup (2S) in the lower shell (30S), which lower layup (2S) includes a connector (15) for adjacent rotor blade segments (11, 12) and a spar cap (13C) on either side of the connector (15); placing a mandrel (31) onto the lower layup (2S), the mandrel (31) extending across the connector (15) of the lower layup (2S); forming a corresponding upper layup (2P) over the mandrel (31), which upper layup (2P) comprises a connector (15) for adjacent rotor blade segments (11, 12) and a spar cap (13C) on either side of the connector (15); and placing the upper shell (30P) onto the upper layup (2P). The invention further describes a wind turbine rotor blade (1) manufactured using such a method.

    BLADE ASSEMBLY FOR A WIND TURBINE BLADE, WIND TURBINE BLADE AND METHOD FOR BUILDING A WIND TURBINE BLADE

    公开(公告)号:EP4310319A1

    公开(公告)日:2024-01-24

    申请号:EP22186515.7

    申请日:2022-07-22

    Abstract: A blade shell assembly for a wind turbine blade shell is described. The blade shell assembly includes a first element (200) having a first mating surface (201) and a second element (300) having a second mating surface (301). The first mating surface (201) and the second mating surface (301) are adapted for abutting on each other in an assembled state. The second element (300) includes one or more grooves (310) able to generate a spring effect to close a gap (450) between the first element (200) and the second element (300), the gap (450) extending substantially in a direction (402) substantially perpendicular to the second mating surface (301) or the first mating surface (201). Further, a method for building a blade shell of a wind turbine blade and a wind turbine blade are described.

    VERFAHREN ZUR BEEINFLUSSUNG EINER GERÄUSCHEMISSION EINES WINDENERGIEANLAGEN-ROTORBLATTES

    公开(公告)号:EP4306796A1

    公开(公告)日:2024-01-17

    申请号:EP22184082.0

    申请日:2022-07-11

    Abstract: Es wird ein Verfahren zur Reduzierung einer Geräuschemission eines Windenergieanlagen-Rotorblattes (200) vorgesehen. Das Windenergieanlagen-Rotorblatt weist eine Vorderkante (230), eine Hinterkante (240), eine Saugseite (250), eine Druckseite (260), eine Profilsehne (201) und einen Hinterkantenkamm (300) mit einer adaptiven Geometrie an der Hinterkante (260) auf. Die Geometrie und/oder Ausrichtung des Hinterkantenkamms (300) zur Beeinflussung der Geräuschemission mittels einer Zackensteuereinheit (420) basierend auf mindestens einem Parameter (500), insbesondere einen Umweltparameter oder einen Windenergieanlagen-spezifischen Parameter, angepasst werden.

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